Drilling machinery.



Patented Dec. 10, I90I.

A. u. GANG. DRILLING MACHINERY.

[Application filed Apr. -20, 1901-.)

3 Sheets-Sheet I.

(No Modl.)

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- 401L 71- eases.

No. 688,508. Patented Dec; l0, I90l. A. H. GANG.

DRILLING MACHINERY.

(No Model.)

(Applicltion filed Apr. 20, 1901.)

I fnveniv r. Y

a? fiflvrne witnesses.

mm. wnsummon n c No. 688,508. Pat ented Dec. l0, moi.

I A. H. GANG. QDRILLING MACHINERY. A hutmn filed Apr 20 1901 3 SheetsSheet 3. v

(No ma i.)

' Jimmy.

UNITED STATES PATENT OFFICE.

ARTHUR H. GANG, OF CINCINNATI, OHIO.

DRILLING MACHINERY.

SPECIFICATION forming part of Letters Patent No. 688,508, dated December 10, 1901.

Application filed April 20, 1901. Serial No. 56,789. (No modelJ To all wlwm/ it may concern:

Be it known that LARTHUR HENRY GANG, acitizen of the United States of America, and

a resident of No. 1634 -Westwood avenue, (post-office address 1534 Queen City avenue,) in the city of Cincinnati, in the county of Hamilton and State of Ohio, have invented an Improvement in Drilling Machinery; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this'specification.

My invention relates to drilling machinery; and it has for its object the improvement in the construction of .such devices whereby they are simplified and rendered more efficient.

The novelty of my invention consists in the combination and subcombination of the parts, as will be hereinafter set forth and specifically pointed out in the claims.

In the accompanying drawings, Figure 1 is a rear elevation of my drilling-machine. Fig. 2 is a side view of the head, partially in section. Fig. 3isafront view of the head. Fig. 4 is a section on line 4 4 of Fig. 6. Fig. 5 is a support for the lever P. Fig. 6 is a section on line 6 Got Fig. 1. Fig. 7 is a vertical section through the sleeve Q and gears R, S, and T. Fig. Sis a front view of U, Fig. 7.

tion on line 10 10 of Fig. 1. tail showing how power is transmitted from the gear T on the spindle T to worm-gear W. Fig. 12 is a detail of frame for supporting the gear X. Fig. 13 is a detail of X showing how pin X is located. Fig. 14 is an end view of frame Y, showing how holes Y are drilled to receive the pin X Fig. 15 is an end view of Fig. 13. Fig. 16 is a plan view showing how the segment-gear U operates in the rack cut on the shaft U Similar letters of reference indicate like parts throughout the several views of the drawings.

As shown in said drawings, A designates the base-plate of the machine, and B thejcolumn to which the horizontal arm 0 is attached. On the arm 0 is a head D, arranged to slide toward the column or from it. The head D has power transmitted to it through the shaft E. Sliding on the shaft E are two whi'ch'is attached to the spindle T through it' from the bottom a shaft S upper end of this shaft S has a T-shaped Fi 9 is a top view of lever P. Fig. 10 is a sea-' Fig. 11 is a do friction-pulleys E E which have bevel-gears E E attached to them.

The bevel-gears E E mesh withthe bevel-gear E which is attached to a sleeve R passing through the hearing Q. The lower end of the sleeve R has a spur-gear R attached to it. ately beneath the spurgear R is another spur-gear S, which is attached to the upper end of a sleeve S The sleeve S passes down through the bearing Q and the sleeve S has also attached to its lower end a spur-gear T. The spur-gear T meshes with an idler T The spindle T has also the spur gear T attached to its lower end just above the spur-gear T from which poweris transmitted to the worm- .gear W through the intermediate gears '1 T T T T T T, spindle T and The spindle T has a shaft T passing down through. its center. The lower end of the shaft T has a pin T passing through it close to the'lower end. The shaft T has a rack T cut in the upper end; The rack '1 meshes withthe gear X on the shaft X The sleeve S has passing up The head 8", which engages with the gears R and S. The lower end of this shaft S has attached to it a lever P, bywhich it is raised and lowered. The lever P passes through a guide or rest P A The lower eudof the columnB rests on a row of balls B The column B rests on a stump B which is secured to the base A. The bottom of the column B is threaded and has a ring 13, which is also threaded on its lower inside, which is screwed on to the column B. The upper inside of this ring B has gear-teeth cut in it, which mesh with four small gears 13 13 13 13 The gears B B B B are threaded on their insides and are screwed onto the square-headed bolts 13 B B B The lower ends of thesebolts B B B B slide through a circular T groove 13, which is cut in the stump B There are two holes in the periphery of the ring B in which the lever B can be placed for turning the ring B.

' The shaft X to which the gear X is attached, passes through the frame Y. The outer end of the shaft X has a flanged piece X attached to it. Projecting from this Immedr' flanged piece X is a pin X which is parallel with the shaft X The inner end of this shaft X has a pin X passing through it. The pin is for the purpose of holding the spring X in position. The outer end of the frame X has a flanged piece Y which is of the same diameter as the flanged piece X on the shaft In the flanged piece Y are three holes Y in which the pin X is arranged to fit.

Power is transmitted from the worm-gear \V through the shaft W to the worm W from the worm W to worm-gear W from worm-gear W' to bevel-gear W, from bevelgear W to bevel-gear W, from bevel-gear W through a shaft in bearing W to bevelgear W from bevel-gear W to bevel-gear W, from bevel-gear W through a shaft in bearing IV to a spur-gear IV, the spurgear W meshing with a rack on the spindle T, which raises and lowers the spindle T The outer end P of the lever P passes through a slot in the lower part of the head U, which is attached to the shaft U The vertical shaft U is attached to the back of the head D by suitable bearings. At the top of the shaft U is secured the segment of a gear U, which meshes with a rack cut in the shaft U The shaft U slidesin bearings attached to the arms D and D At the outer ends of the shaft U are arms U and U, which operate sleeves on the shaft E, that throw the friction-clutches E and E in or out.

The operation of my drill is as follows:.

Power is applied to the cone-pulley B which transmits power through shaft 13 to mitergears 13 and B, through shaft B to spurgear B from B to gear B down through shaft B to miter-gears B and B to horizontal shaft E. The gears and E being a part of the friction-clutches E and E will revolve when they do. The friction-clutches E and E being on the shaft E will also revolve when E revolves if the frictions are thrown in and remain stationary if the frictions are not thrown in. The friction-clutches are operated by the lever P, the lever P being pivoted to the shaft S so that when the handle P is thrown to one side or the other in slots P and P it will cause the shaft D to turn, which in turn will cause the gear-segment U to turn, which meshes with rack U, cause U to slide back and forth in its bearings as the arms U and U are attached to the ends of shaft U to move back and forth also. The arms U and U in turn cause the sleeves which operate the clutch on friction-wheel to engage and disengage frictions, the frictions being so located that they are on opposite sides of the gear E that they drive. One friction will drive it in one direction, the other friction in the opposite direction; so by the agency of the lever P the drill can be caused to drive with the sun or against it. The lever P is used also to operate the shaft S The lever P being attached to the lower end of shaft S it can be used to raise and lower the shaft, thereby causing the upper end, which has the T-piece S attached to it, to engage and disengage the gears R and S, which will transmit either a high or low speed to the spindle T through the intervening gears, so i ing mechanism, the sliding head having at-" tached to it a shaft with a rack cut in it which meshes with the segment of a gear, the segment of agear having a vertical shaft attached to it for operating the segment of a gear, substantially as described.

2. In a drilling-machine, the combination with a vertical column, a horizontal arm,with a head sliding on said arm, means for having power carried to said head, friction-clutches attached to said head for reversing the drilling mechanism, the sliding head having attached to ita shaft witha rack cut init which meshes with the segment of a gear, the segment of a gear having a vertical shaft,attached to it for operating the segment of a gear, the lower end of the vertical shaft having attached to its lower end a horizontal lever for turning the vertical shaft, substantially as described.

3. The combination in a drilling-machine of a vertical spindle, having a spur-gear attached to its lower end, meshing with other gears attached to a vertical hollow shaft, the hollow shaft having a solid shaft passing down through the hollow shaft, the solid shaft having a pin through its lowerend to engage with gearing on the hollow shaft, the upper part of the solid shaft having a rack cutin it, the rack to mesh with a gear which raises and lowers the solid shaft, the gearing being on a horizontal shaft which can be turned and locked when the solid vertical shaft has been placed in the desired position, substantially as described.

4. The combination in a drilling-machine of a column revolving around a stump, the lower end of the column being threaded, having a ring-thread to screw on the lower end of the column, the upper and inner part of the ring having gear-teeth cut in it, the gearteeth meshing with pinions, the pinions being threaded on the inside to form a nut for T-bolts that are placed in an annular T-slot IIO out in the stump, the space between the lower 

